Four-claw clamper for static pile press

The invention discloses a four-claw clamper for a static pile press. The four-claw clamper comprises a mounting frame, a first group of clampers and a second group of clampers, wherein the mounting frame is mounted on a frame; the first group of clampers and the second group of clampers are connected with a hydraulic system through oil pipes, both mounted on the mounting frame and arranged on the mounting frame in parallel; the first group of clampers and the second group of clampers respectively comprise 4 hydraulic oil cylinders and 4 arched clamping plates; the hydraulic oil cylinders in each group are uniformly distributed to form an angle of 90 degrees between each other; the hydraulic oil cylinders and the clamping plates in each group are connected with each other one to one; furthermore, the clamping surfaces of the clamping plates in each group are machined into combined bodies of arc surfaces and planes, wherein the arc surfaces are used for clamping cylindrical concrete piles; and the planes are us